U.S. patent number 5,844,472 [Application Number 08/898,843] was granted by the patent office on 1998-12-01 for portable rechargeable power supply adaptor with illuminated key holder.
Invention is credited to Victor Shiu P. Lee.
United States Patent |
5,844,472 |
Lee |
December 1, 1998 |
Portable rechargeable power supply adaptor with illuminated key
holder
Abstract
A portable, electronic device provides base functions as an
illuminated key holder, a recharging system, and an accessory
light, as well as extended functions. The internal Nicad battery
power supply can be recharged from a variety of sources. With the
device plugged into a recharging source such as a cigarette lighter
socket, a special docking mechanism interfaces with it to power or
recharge a variety of electronic devices. The docking unit provides
a universal adaptor to mate with several different popular socket
sizes. In the best mode an audio recorder and playback device is
combined with the flashlight and key chain apparatus. This enables
both voice recording and playback. A map light mounting system
enables the module to be held in a desired position within a
vehicle to provide a mounted light source once the key ring is
removed. The map light uses a resilient stand having a pair of
slotted wings that are coupled to specially configured clips that
easily adapt to surfaces and projections that might be encountered
within an automobile such as air conditioning louvers or the like.
The clips have special hooks that are slidably captivated within
the wing slots. Zig-zag clip legs are resiliently biased together
to readily affix the clips to an object. The docking system
normally provides a regulated direct current output that is voltage
selectable to supply voltages used by common electronic devices. A
bypass switch within the module bypasses the module voltage
regulator for docking.
Inventors: |
Lee; Victor Shiu P. (Chino
Hills, CA) |
Family
ID: |
25410117 |
Appl.
No.: |
08/898,843 |
Filed: |
July 25, 1997 |
Current U.S.
Class: |
340/438;
340/693.1; 340/473; 340/321; 362/439; 320/111 |
Current CPC
Class: |
H02J
7/00047 (20200101); H02J 7/0003 (20130101); H02J
7/0068 (20130101); B60R 11/02 (20130101); H02J
7/0045 (20130101); B60R 2011/0005 (20130101); B60R
2011/0059 (20130101); B60R 2011/0084 (20130101); B60R
2011/0071 (20130101); B60R 2011/0085 (20130101) |
Current International
Class: |
B60R
11/02 (20060101); H02J 7/00 (20060101); B60R
11/00 (20060101); B60Q 001/00 () |
Field of
Search: |
;340/473,438,691,693,692,321,636 ;320/107,111,114,115,138,132
;362/439,430,182 ;439/622 ;248/447.2 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hofsass; Jeffery A.
Assistant Examiner: La; Anh
Attorney, Agent or Firm: Carver; Stephan D.
Claims
What is claimed is:
1. A portable, rechargeable, self powered adaptor comprising:
a module comprising an interior, a handheld portion for grasping by
a user, and a reduced diameter shank portion for insertion into a
recharger source,
rechargeable battery means disposed within said interior;
module circuit means for recharging said battery means in response
to said recharger source;
light means for selectively illuminating an object;
selector switch means associated with said module circuit means for
selectively activating said light means;
a key ring assembly removably coupled to said module for
selectively holding keys; and,
docking means adapted to be selectively coupled to said module for
interfacing with and powering or recharging a plurality of
different electronic devices.
2. The adaptor as defined in claim 1 further comprising output
regulator means within said adaptor for outputting regulated
voltage.
3. The adaptor as defined in claim 2 further comprising means for
selectively bypassing said output regulator means.
4. The adaptor as defined in claim 1 wherein said docking means
comprises:
a housing adapted to be coupled to said module to receive a given
voltage therefrom;
voltage selection means within said housing for outputting a
plurality of different user selected voltages therefrom; and,
universal Coupling means comprising a plurality of differently
sized plugs for interfacing with a plurality of electronic devices
for powering or recharging same in response to said voltage
selection means.
5. The adaptor as defined in claim 1 further comprising map light
means for mounting said module in a convenient position and aiming
it at a selected target.
6. The adaptor as defined in claim 5 wherein said map light means
comprises:
a tubular receptor for receiving and temporarily mounting the
module;
an elongated, resilient stand for supporting the receptor, said
stand having a top, a spaced apart lower foot, and a pair of
outwardly projecting wings; and,
mating clip means removably coupled to said wings for securing said
stand in a desired orientation.
7. The adaptor as defined in claim 6 wherein said map light means
comprises slots defined in said wings, and said mating clip means
comprises hook means slidably captivated within said slots.
8. The adaptor as defined in claim 7 wherein said clip means
comprises a pair of complimentary, zig-zag legs for clamping about
at least a portion of a chosen supporting structure.
9. The adaptor as defined in claim 1 wherein the key ring assembly
comprises a split ring for holding keys, said ring having a
predetermined diameter, said diameter being greater than the
diameter of any recharging source to which the module is plugged so
that the module cannot be recharged without removing the key ring
assembly.
10. The adaptor as defined in claim 1 further comprising audio
record and playback subcircuit means within said module operated by
said module circuit means, said audio record and playback
subcircuit means comprising:
means for deriving power from said module circuit means;
microphone means within said module for detecting audio;
integrated circuit means for transforming audio between digital and
analog states;
memory means for storing digitized audio;
speaker means within said module for reproducing analog audio;
and,
means for switching between record or playback functions.
11. The adaptor as defined in claim 1 further comprising vehicle
battery monitor subcircuit means for warning when a vehicle battery
or electrical system to which the module is connected is too low or
too high in voltage.
12. The adaptor as defined in claim 11 wherein said vehicle battery
monitor subcircuit means comprises:
Zener diode means for conducting current when incoming voltage
exceeds a predetermined threshold;
means for indicating proper input voltage;
transistor means for activating said last mentioned indicator means
in response to said Zener diode means;
means for indicating low input voltage; and,
second transistor means for disabling said last mentioned indicator
means in response to said Zener diode means.
13. The adaptor as defined in claim 1 wherein said adaptor
comprises a sound generation alarm system housed therewithin, the
sound generation system comprising a subcircuit comprising a sound
production integrated circuit, a feedback resistor connected to
said integrated circuit, a piezoelectric transducer for producing
sound, and wherein said resistor may be switched in value to switch
the sound generation system between roles as a personal alarm, a
dog repeller, and a mosquito repeller.
14. A portable, rechargeable, battery powered map light
comprising:
a module defining an interior, a handheld portion for grasping by a
user, and a reduced diameter shank portion for insertion into a
recharger source;
rechargeable battery means disposed within said interior;
module circuit means for recharging said battery means in response
to said recharger source;
light means for illuminating an object;
selector switch means for selectively activating said light
means;
map light means for mounting said module in a convenient position
and aiming it at a selected target, said map light means comprising
a tubular receptor for receiving said shank portion and temporarily
mounting the module, an elongated, resilient stand for supporting
the receptor, and clip means removably coupled to said stand for
securing said map light means in a desired orientation; and,
docking means adapted to be selectively coupled to said module for
interfacing with and powering or recharging a plurality of
different electronic devices, said docking means comprising:
a housing adapted to be coupled to said module to receive current
at a given voltage therefrom;
voltage selection means within said housing for outputting a
plurality of different user selected voltages therefrom; and,
universal coupling means comprising a plurality of differently
sized plugs for interfacing with a plurality of electronic devices
for powering or recharging same in response to said voltage
selection means.
15. The map light as defined in claim 14 wherein said stand
comprises a top, a spaced apart lower foot, and a pair of outwardly
projecting wings, and said clip means removably couples to said
wings for securing said stand in a desired orientation.
16. The map light as defined in claim 15 wherein said map light
means wings comprise slots, said clip means comprises hook means
slidably captivated within said slots, and said clip means
comprises a pair of complimentary, zig-zag legs for clamping about
at least a portion of a chosen supporting structure.
17. The map light as defined in claim 14 further comprising audio
record and playback subcircuit means operated by said module
circuit means, said audio record and playback subcircuit means
comprising:
means for deriving power from said module circuit means;
microphone means within said module for detecting audio;
integrated circuit means for transforming audio between digital and
analog states;
memory means for storing digitized audio;
speaker means within said module for reproducing analog audio;
and,
means for switching between record or playback functions.
18. The map light as defined in claim 14 further comprising vehicle
battery monitor subcircuit means for warning when a vehicle battery
or electrical system to which the module is connected is too low or
too high in voltage.
19. The map light as defined in claim 18 wherein said vehicle
battery monitor subcircuit means comprises:
Zener diode means for conducting current when incoming voltage
exceeds a predetermined threshold;
means for indicating proper input voltage;
transistor means for activating said last mentioned indicator means
in response to said Zener diode means;
means for indicating low input voltage; and,
second transistor means for disabling said last mentioned indicator
means in response to said Zener diode means.
20. The map light as defined in claim 14 wherein said map light
comprises a sound generation alarm system housed therewithin, the
sound generation system comprising a subcircuit comprising a sound
production integrated circuit, a feedback resistor connected to
said integrated circuit, a piezoelectric transducer for producing
sound, and wherein said resistor may be switched in value to switch
tile sound generation system between roles as a personal alarm, a
dog repeller, and a mosquito repeller.
21. A portable, rechargeable, key ring and power supply adaptor
comprising:
a module comprising an interior, a handheld portion for grasping by
a user, and a reduced diameter shank portion for insertion into a
recharger source;
rechargeable battery means disposed within said interior;
module circuit means for recharging said battery means in response
to said recharger source;
light means for selectively illuminating an object;
selector switch means associated with said module circuit means for
selectively activating said light means;
docking means adapted to be selectively coupled to said module for
interfacing with and powering or recharging a plurality of
different electronic devices; and,
a key ring assembly removably coupled to said module for
selectively holding keys, said key ring assembly comprising a split
ring for holding keys, said ring having a predetermined diameter,
said diameter being greater than the diameter of any recharging
source into which the module is plugged so that the module cannot
be recharged without removing the key ring assembly.
22. The adaptor as defined in claim 21 wherein said docking means
comprises:
a housing adapted to be coupled to said module to receive current
at a given voltage therefrom;
voltage selection means within said housing for outputting a
plurality of different user selected voltages therefrom; and,
universal coupling means comprising a plurality of differently
sized plugs for interfacing with a plurality of electronic devices
for powering or recharging same in response to said voltage
selection means.
23. The adaptor as defined in claim 22 further comprising map light
means for mounting said module in a convenient position and aiming
it at a selected target, said map light means comprising:
a tubular receptor for receiving and temporarily mounting the
module;
an elongated, resilient stand for supporting the receptor, said
stand having a top, a spaced apart lower foot, and a pair of
outwardly projecting wings; and,
mating clip means removably coupled to said wings for securing said
stand in a desired orientation.
24. The adaptor as defined in claim 23 wherein:
said map light means comprises slots defined in said wings;
and,
said mating clip means comprises hook means slidably captivated
within said slots and a pair of complimentary, zig-zag legs for
clamping about at least a portion of a chosen supporting
structure.
25. The adaptor as defined in claim 24 further comprising audio
record and playback subcircuit means operated by said module
circuit means, said audio record and playback subcircuit means
comprising:
means for deriving power from said module circuit means;
microphone means within said module for detecting audio;
integrated circuit means for transforming audio between digital and
analog states;
memory means for storing digitized audio;
speaker means within said module for reproducing analog audio;
and,
means for switching between record or playback functions.
26. The adaptor as defined in claim 24 further comprising vehicle
battery monitor subcircuit means for warning when a vehicle battery
or electrical system to which the module is connected is too low or
too high in voltage.
27. The adaptor as defined in claim 26 wherein said vehicle battery
monitor subcircuit means comprises:
Zener diode means for conducting current when incoming voltage
exceeds a predetermined threshold;
means for indicating proper input voltage;
transistor means for activating said last mentioned indicator means
in response to said Zener diode means;
means for indicating low input voltage; and,
second transistor means for disabling said last mentioned indicator
means in response to said Zener diode means.
28. The adaptor as defined in claim 24 further comprising a
transformable sound generation alarm system comprising a subcircuit
comprising a sound production integrated circuit, a feedback
resistor connected to said integrated circuit, a piezoelectric
transducer for producing sound, and wherein said resistor may be
switched in value to switch the sound generation system between
roles as a personal alarm, a dog repeller, and a mosquito repeller.
Description
BACKGROUND OF THE INVENTION
I. Field of the Invention
The present invention relates generally to portable, battery
powered multi-function electronic devices that require recharging,
including rechargeable power supplies, lights, key holders,
accessory interfaces or the like. More particularly, my invention
relates to a multi-functional, solid state electronic key holder
device that can be recharged from a variety of sources, and which
readily powers or recharges a variety of accessories or other
electronic devices.
II. Description of the Prior Art
In the prior art a wide variety of electronic self-contained and
portable internally powered devices and accessories are known. A
number of prior art devices comprising internal power supplies and
lights have been combined with key holders or key rings. Some prior
art key rings include knives or other contrivances in addition to
battery operated lights or flash lights. Usually internal batteries
supply the necessary power. For example, U.S. Pat. No. 5,008,784
issued Apr. 16, 1991 shows a tubular key ring device in the form of
a small flashlight that enables a user to illuminate a lock before
inserting keys.
The same concept is shown in U.S. Design Pat. No. 236,652.
U.S. Design Pat. No. 370,339 discloses a design for a
self-contained key container combined with an electronic sound
recorder and playback machine.
U.S. Design Pat. No. 311,349 discloses a combined personal alarm
and key ring. The generally cubical housing is attached to a key
ring at its corner and presumably houses suitable circuitry to
generate a loud noise when triggered.
U.S. Design Pat. No. 288,468 shows a flash light combined with a
protective spray holder and a key chain.
U.S. Design Pat. Nos. 263,651; Des. 262,241 and 283,684 show
various structures that combine lights with key chains. Both of the
latter patents disclose devices having self-contained power
supplies.
U.S. Design Pat. Nos. 313,504 and 292,243 show battery operated
lights combined with removable key holders.
U.S. Pat. No. 5,578,992 shows a digital electronic safety alarm
combined with a flashlight and a self contained power source. The
light source and the audio unit are controlled by internal
circuitry.
U.S. Pat. No. 5,442,529 shows a knife combined with key rings, a
light and a power source. An internal battery operates a small bulb
in the back of the knife.
Many battery-powered accessories for automobiles and/or home use,
including flashlights, cellular phones, portable radios, and the
like are in wide spread use. Many of these devices are recharged
through suitable apparatus sold with the unit. A variety of
adapters and recharging units are known. However, a simple portable
device that functions as a recharger for many diverse electronic
devices, which can be carried in a pocket and used successfully for
a number of electrical or mechanical purposes both in the home and
in an a vehicle, would be desirable.
For example, a multi-function, portable device that can be quickly
transformed between home and auto uses would minimize the number of
recharging cords and accessories that a consumer must otherwise
carry to operate diverse devices. It would be highly advantageous
to simplify the recharging process. An appropriate device must
easily mate with the vehicle cigarette lighter, for example, while
at the same time offering diverse power outputs for many different
electronic accessories. While portable electronic devices that
charge within a vehicle are well known, no prior art references
have hitherto disclosed the combination of a portable, rechargeable
power supply that can be transformed between roles as a key holder,
a map light, a recharger for cellular phones or the like, and an
audio recorder-playback unit which is readily transformable between
home use and vehicular use. An ideal device must be small, compact
and portable. It must require the carrying of a minimal amount of
cords and jacks. It must aid in recharging other battery-operated
devices such as recorders, players, personal alarms, battery
monitors, air ionizers and the like with a minimum of effort and
inconvenience.
SUMMARY OF THE INVENTION
The present invention comprises a portable electronic
multi-function device capable of a variety of beneficial
applications. The invention broadly functions as an illuminated key
holder, a portable recharging unit, and an auxiliary or accessory
light. A map light arrangement provides a convenient way for the
user to mount the apparatus in a convenient fashion within a
vehicle. The internal power supply can be recharged from a variety
of sources. A docking mechanism interfaces with a hand-held module
to recharge a variety of battery powered electronic devices with
multiple jacks to adapt to differing configurations.
The module may house an audio alarm, a record playback mechanism, a
vehicle battery monitor, or other basic device. Thus device note
only has the capability of recharging a variety of popular
electronic devices or accessories with its docking system, but it
accomplishes several fundamental functions without docking that are
useful to the traveling consumer.
At the heart of the preferred device is an internal power circuit.
A number of user desired, functions may be selected in variations
of the device. For example, the device normally functions as an
audio recorder, enabling both voice recording and playback. This
function is normally combined with the flashlight, map light and
key holder functions also described. Alternatively, it can be
configured as a car battery monitor, a personal alarm, a mosquito
or dog repeller, or a vehicle battery monitor.
The internal light system functions at the behest of the user in
combination with all other possible functions. For example, the
"key holder" function of the device is complemented by the lighting
circuitry, making it easier to find a key hole in the dark. The key
holder apparatus may be easily removed for recharging the device,
or for transforming it into a vehicular accessory light. A unique
map light mounting system is employed to mount the transformed
light system in a desired orientation within a vehicle.
The portable, self contained device may be carried by a user
between, for example, an automobile and an office. It may be
quickly transformed into a recharge configuration when needed. When
used with an automobile, it can be plugged into the 12 volt DC
cigarette lighter. This will mechanically mount the device in a
convenient fashion, and will recharge the internal power supply
when necessary. Further, when the docking mechanism is attached, a
variety of other electronic gadgets may be recharged through the
universal adaptor on the docking mechanism.
The conveniently shaped module is easily grasped by a user for
orientation. The module readily fits in a map light mounting system
that is ideal for vehicles. The map light frame is specially
designed to be mounted in a variety of orientations. It has a
generally vertical body portion supported by slotted wings that are
quick mounted via flexible clips. The clips resiliently, slidably
mount to the wings and are capable of assuming a wide variety of
orientations, thus adapting the map light system for mounting
almost anywhere. The mounting system is also compact and portable.
It may be conveniently carried by the user between vehicles or
locations.
Thus, an object of my invention is to provide a portable
rechargeable power supply that performs a diverse number
functions.
A basic object is to provide an illuminated key holder device.
Another object is to provide a portable, recharger for cellular
phones and similar portable electronic devices.
Another object of my invention is to provide a portable flashlight
or map light device which can be recharged from a variety of
sources.
Another object of my invention is to provide a simple, portable
audio recorder that can record and play back audio.
A still further object of my invention is to provide an automotive
battery checker.
Another object of my invention is to provide an alarm which can be
used for personal safety.
Yet another object of my invention is to provide a dexterous map
light, that can be readily and conveniently disposed in a suitable
orientation within an automobile to illuminate a map while
driving.
A fundamental object of my invention is to minimize the number of
separate recharge items that a consumer might ordinarily need in
order to charge or use a variety of electronic gadgets.
A broad object is to provide a portable, self powered rechargeable
multi-function device that combines a variety of helpful functions
in a neat portable, economical package.
Another object of my invention is to provide a portable key ring
device which can be readily detached from the powered module.
A fundamental purpose is to provide a multi-function, electronic
device of the character described that may be transformed by the
user as desired between the multiple roles discussed above.
Another fundamental object is to combine fundamental devices,
including a recorder player device, a car battery monitor and a
personal alarm with an internal flashlight, a clip mount map light,
a removable key ring, and a DC output jack to power various
extended accessories. It is a feature of my invention that unique
digital electronic circuitry is provided to accomplish the
aforesaid purposes.
A basic purpose is to provide a device of the character described
that interfaces with a variety of other electrical and electronic
accessories to recharge them. For example, a charger cable and a
suitable adaptor enables the device to recharge conventional
cellular phone systems.
These and other objects and advantages of the present invention,
along with features of novelty appurtenant thereto, will appear or
become apparent in the course of the following descriptive
sections.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following drawings, which form a part of the specification
and which are to be construed in conjunction therewith, and in
which like reference numerals have been employed throughout
wherever possible to indicate like parts in the various views:
FIG. 1 is an exploded frontal isometric view of the preferred
Portable Rechargeable Power Supply Adaptor with Illuminated Key
Holder, showing the docking mechanism, the map light holder, and an
A.C. recharger;
FIG. 1A is an enlarged isometric view of the preferred map light
clip;
FIG. 1B is a side elevational view of the map light clip of FIG.
1A;
FIG. 1C is an end view of the map light clip of FIGS. 1A, 1B, taken
from a position to the left of FIG. 1B;
FIG. 2 is a rear exploded rear isometric view of the device similar
to FIG. 1;
FIG. 3 is an enlarged, frontal isometric view of the preferred
device;
FIG. 3A is a fragmentary, left side elevational view thereof;
FIG. 3B is a rear end view thereof;
FIG. 3C is a bottom plan view thereof;
FIG. 3D is a front plan view thereof;
FIG. 3E is a top plan view thereof;
FIG. 4 is a fragmentary perspective view illustrating recharging
within a dwelling;
FIG. 4A is an enlarged fragmentary isometric view of the docking
mechanism;
FIG. 5 is a blocked diagram of the electronics of the device;
FIG. 6 is an electronic schematic diagram of the power supply;
FIG. 7 is an electronic schematic diagram of the record and
playback circuitry;
FIG. 8 is an electronic schematic diagram of the preferred vehicle
battery monitor circuit;
FIG. 9 is an electronic schematic diagram of the transformable
circuit that acts as a personal alarm, a mosquito repeller, or dog
repeller; and,
FIG. 10 is an electronic schematic diagram of the docking mechanism
voltage selection circuit.
DETAILED DESCRIPTION
Referring initially to FIGS. 1-4 of the drawings, my Portable,
Rechargeable Illuminated Key Holder has generally been designated
with the reference numeral 20. At the heart invention is a unique,
hand-held, portable module generally designated by the reference
numeral 22. The rechargeable module 22 houses an internal NiCad
battery pack shown in the schematic diagram to be discussed
hereinafter. Nominally this provides 4.8 volts D.C. output. An
individual battery 23 appears in FIG. 3A. Module 22 removably
mounts a key ring assembly 24 that is easily attached or detached
as desired. With the key ring assembly 24 attached, module 22
functions as a key holder; when the key ring assembly is removed
the module is ready for insertion into a recharge outlet.
In a vehicular setting the portable module 22 may be plugged into
the D.C. cigarette lighter socket. Alternatively, it may be coupled
to an A.C. powered recharger 34 (FIG. 2) within, for example, the
home or office. For charging purposes the generally tapered shank
29 is simply inserted within appropriate orifices 36, 38 defined at
the front 39 of recharger 34 adjacent identification label 33. The
recharger 34 is adapted to be plugged into a conventional source of
117-120 volt AC current with its conventional prongs 35 (FIG. 1)
mated within an ordinary electrical outlet. As best seen in FIG. 4,
the plug elements 35 mechanically suspend the recharger over a
suitable wall socket in wall 37 (FIG. 4) for interior mounting.
Insertion of the module into any recharge socket enables recharging
of the internal module batteries, and the application of power to
output jack 54.
Importantly, module 22 provides a flashlight function, and it may
be transformed into a map light. The map light mounting assembly 42
to be discussed in detail hereinafter may be secured in a desired
orientation within, for example, a vehicle. The key ring assembly
must be removed so that module 22 may be inserted within tubular
receptor 40 on assembly 42. The multi-purpose mounting assembly 42
is secured within a vehicle by suitable clips to be discussed
hereinafter, such that receptor 42 (and the module 22 received
therewithin) are aimed appropriately. Whether or not the key holder
assembly 24 is mechanically disassociated from module 22, the
invention 20 may provide a handy light source. When inserted within
receptor 40 it is mechanically secured in a proper orientation.
The rechargeable module 22 includes a somewhat bulbous, main body
portion 46 that contains circuitry to be hereinafter described.
Body portion 46 is contoured to fit with a complementary docking
mechanism to provide power to a plurality of diverse accessories to
be discussed hereinafter The docking mechanism 49 comprises a
docking housing 50 having an electronic plug 52 that mates to
suitable circuitry described later through an electrical socket 54
(FIG. 3E) in the recharge module. (Socket 54 may optionally power a
cellular phone directly without insertion of the docking
mechanism). An elongated electrical cable 58 leads from the docking
unit 50 to a remote, universal coupling 60 that supports a variety
of terminal plugs 61-63 of varying dimensions. These plugs are
designed to mate with differently sized power input jacks common to
a variety of conventional electronic devices.
With primary emphasis now directed to FIGS. 3 and 3A-3E, the casing
of the module 22 comprises a pair of cooperating, molded plastic
halves 70, 71. In assembly, the complementary body halves 70, 71
are coupled together and separated by seam 72 (FIG. 3C). The larger
body portion 46 is generally in the form of a bulbous handle which
fits in the palm of the user. The generally cylindrical, reduced
diameter shank 29 extends integrally outwardly from body 46 and
terminates at the front of the module in a tapered portion 75. The
flat, annular surface 79 at the end of taper 75 is concentric with
an annular metal plug 81 projecting from the module front. Plug 81
has an internally threaded orifice 84 adapted to be threadably
mated to the keychain apparatus 24. As described hereinafter, plug
81 is electrically connected to circuitry within module 22. This
plug energizes the module when inserted within a cigarette lighter
socket.
With additional reference to FIGS. 1 and 2, key chain apparatus 24
includes a conventional metal split ring 86 that penetrates a rigid
post 88. A rigid, threaded stub 89 projects outwardly from post 88
for mating with orifice 84 (i.e., FIG. 3) in plug 81 at the front
of module 22. The key ring apparatus must be removed prior to
recharging module 22. Preferably the diameter of ring 24 is bigger
than the diameter of the a cigarette lighter socket to prevent a
user from inadvertently inserting the key ring into a cigarette
lighter. When mechanically mated to module 22, the key ring post
projects forwardly away from the "hot" plug 81.
Shank 29 of the recharger includes an elongated, external metal
contact 90 that makes electrical contact with ground when shank 29
is inserted within a recharge socket. The shank 29 is in the form
of a conventional automotive cigarette lighter so that the recharge
module 22 can be plugged into a conventional cigarette lighter
socket. Alternatively it may be received within cigarette lighter
"sockets" 36 or 38 provided by recharger 34. The recharge circuit
to be described hereinafter is completed by contact with "positive"
voltage by the metal plug 81.
The larger diameter module portion 46 also houses an internal
recorder to be described electronically later. Audio sounds are
inputted and transmitted out of an apertured grill 10 (FIG. 3) that
comprises a plastic insert fitted to opposite sides of the recharge
unit. The grill 110 includes a plurality of slots 111 for
conducting audio sounds. Also mounted on the top of the handle
portion 46 is a mechanical "record" button 113 which is
spaced-apart from the similarly shaped "play" button 115. These
recessed buttons operate the recording unit to be described
hereinafter. However the function selector switch 119 must first be
activated.
Function selector switch 1 19 controls the lights and audio
circuitry of the module. The three position slide switch 119 (FIG.
3C) is aligned within seam 172 and constrained at the bottom of the
module. The indicator marking 120 on the switch face is aligned
with the "Off" mark on the module bottom (FIG. 3C) when neither
function is selected. The switch is moved to the "R" position to
start the recorder/playback apparatus, or to the "L" position for
activating the internal light. The LED indicators 128 and 129 are
activated in response to the recorder/playback circuitry to be
described hereinafter. Illumination occurs when bulb 132 (FIGS. 3A,
3B) is activated. A directed beam is outputted through lens 130 at
the rear of the module towards an object to be illuminated.
The docking mechanism 49 distributes power for the accessory
recharge function. Docking housing 50 has a substantially concave
underside 140 (FIG. 1) adapted to flushly mate with the convexly
profiled surface area 53 (FIG. 2) of the recharger module rear.
When attached to the recharge module the plug 52 penetrates socket
54 in the recharger to make electrical contact. At this time bypass
switch 188 should be activated. A variety of regulated voltages may
be selected for output from the docking mechanism as described
later. A rotary switch 142 (FIG. 4A) on the docking mechanism may
be dialed into various contact positions 144 to select a desired
Output voltage. Voltage selection relates to the accessory to be
remotely powered. The regulated "dial up" voltage appears on the
output jacks 61, 62 or 63, one of which will be selected and
inserted into a complimentary jack in the device to be
recharged.
With primary reference now directed to FIGS. 1 and 2, the map light
assembly 42 is primarily used within a vehicle. Assembly 42
preferably comprises a plastic reinforced, elongated stand 150
having a transversely oriented, bottom foot 152 and a pair of
intermediate, transversely extending wings 154 and 155. Each of
these wings are provided with slots 151 that slidably receive
mating clips 159 to be described later. The top 153 of the stand
150 comprises a pair of integral, spaced apart flanges 160
surmounting a mounting lug 161 downwardly projecting from the
tubular receptor 40 (FIG. 2). Pivoting is provided by a fastener
162 that is hand tightened with mating wing nut 165 (FIG. 1)
projecting from the opposite side. The standard wing nut 165
permits the user to adjust the map light arrangement as desired to
project light towards the intended target.
In operation the map light stand 150 must be properly oriented and
mounted. The length of the stand may pivot slightly about the
points established by slotted wings 154, 155. Rotation or pivoting
of the stand is limited by the bottom foot 152. Further, the
orientation and disposition of the clips 159 establishes the
mounting angle and the overall orientation. By properly placing the
clips the light system will be accurately aimed in the intended
direction.
A preferred mounting clip 159 is best seen in FIGS. 1A-1C.
Preferably each clip is molded from resilient plastic. The clip
base 181 is integral with a pair of outwardly extending, converging
legs 183A and 183B that are yieldably biased together. These legs
comprises complimentary zig-zag elbows 185A and 185B respectively
that, when the clip is deployed, firmly clamp themselves about a
portion of the chosen supporting stricture. For example, they may
be secured to a portion of the air conditioning grill or any other
convenient dashboard accessory within a vehicle. Terminal angled
portions 187A and 187B outwardly diverge from one another to ease
mounting, and they can be deflected apart manually when it is
desired to reposition or remove the apparatus.
Resilient clips 159 are captivated within the slotted wings 154,
155 of stand 150. Preferably the clips are slidable within the wing
slots 151 against yieldable pressure from opposed L-shaped hooks
189, 191. The clearance channels 193 between the hooks and base 181
are occupied by the wings 154, 155 after assembly. Since the
resilient hooks are snugly fitted within wing channels 151, they
will firmly but yieldably maintain the desired orientation and
alignment.
FIG. 5 depicts the overall electrical operation of the apparatus in
generalized block form. The area enclosed in dashed lines
represents the module 22. The docking unit 50 is represented
electrically by box 50A. It makes electrical contact with voltage
recharge source contacted by plug 81 of module 22. Jack 52 (or a
cellular phone jack, for example) may be coupled to socket 54
discussed earlier. The docking mechanism 50 enables the selection
of a number of extended accessories which may be employed at the
leisure of the operator. A number of popular consumer goods, which
are often portable, requiring different electrical voltages and
varying mechanical connections may be powered by the docking unit.
The desired docking unit plug 61-63 must be chosen, (FIG. 2), and
the selection switch 142 on the docking mechanism 50 must be
switched to the right voltage (i.e., FIG. 4A). A vehicle battery
charger adapter 182 may also be interfaced. The cellular phone
battery adapter 184, hand-held audio equipment 186A or hand-held
games 186B that may similarly be interfaced and powered.
Referring again to FIG. 5, the rechargeable Nicad battery pack 170
outputs approximately 4.8 volts as indicated at line 172 to power
functions 174. These include the flashlight function 176 and the
map light function 178. The removable key ring apparatus 24A (FIG.
5) mechanically secures keys or the like to the module. While the
key ring is schematically drawn as part of the unit, it must be
disconnected prior to inserting module shank 29 into any recharger
apparatus or the map light receptor 40 previously described. The
approximately twelve volt power source 182 (FIG. 5) can be provided
by an automotive electrical system 184, or by the reduced DC
voltage outputted in ones home from the "cigarette lighter" type
power supply 34 (FIGS. 1 & 2).
FIG. 5 also reveals an internal bypass switch, designated in block
form by the reference numeral 188A, that allows the direct
interconnection of the extended accessory apparatus 50A in FIG. 5
with DC power. Mechanically the bypass switch 188 (FIG. 3E) is
mounted on the top of the module. The electrical counterpart,
switch 188 in FIG. 6, bypasses the regulator subcircuit 221 for use
of the docking mechanism. In other words, the internal regulator
subcircuit 221 normally provides the correct Output voltage to a
cellular phone plugged into socket 54 instead of the docking unit
(i.e., when the module 22 is plugged into a recharge socket). Line
179 designates the connection of the bypass switch to the power
source.
Again referencing FIG. 5, module interface 190 interconnects the
circuitry to one of the multiple functions 204. High frequency
noises can be generated by an oscillator circuit (FIG. 9) that
functions as a dog repeller 200. Similar noises can be generated by
the same subcircuit to repel mosquitoes as indicated by block 202,
or to provide a loud, personal alarm 208. Similarly, an emergency
flasher 206 (FIGS. 5, 6), a clock or timer 212, or extended
functions 213 (FIG. 6) may be added. The recorder player function
has been previously discussed in conjunction with FIGS. 1 and 2. It
is referenced generally by the reference numeral 214. The car
battery monitor function 210 drawn in block form in FIG. 5 is
accomplished by the subcircuit of FIG. 8 to be later described.
Tuning now to FIG. 6, the basic charging circuit is generally
designated by the reference numeral 200. In FIG. 6 the input node
201 of circuit 200 is established by plug 81 (FIG. 1) that contacts
positive voltage with the module plugged in for recharging. The
"negative" or ground node 203 is established electrically by
contact 90 at the side of the module (FIG. 1). Approximately 12 to
13.8 volts DC is applied across terminals 201, 203 when the module
22 is plugged into a automotive cigarette lighter. At this time the
green indicator LED 128 (FIGS. 3, 3A, 6) is switched "on," and
current limited by resistor 209 is applied to the battery pack 170
for recharging.
Line 211 (FIG. 6) applies current to the selector switch 119A
(which is mechanically designated as 119 in FIG. 3C). With selector
switch 119 disposed as illustrated (i.e., in the "R" position), the
audio record/playback subcircuit 250 operates. When switched to the
"light" position designated by the letter "L," bulb 132 turns on,
thereby providing the map light or flashlight functions.
Voltage on line 220 is also delivered to an output regulator
subcircuit 221 (FIG. 6) that comprises a current limiting resistor
222 shunted by Zener diode 223 and connected to isolator diode 225.
Subcircuit 221 outputs the correct voltage (i.e., 7.5 volts) so
that a cellular phone, for example, may be plugged directly into
module jack 54 (i.e., across nodes 229, 231). Switch 188 bypasses
the regulator subcircuit 221 for docking. When switch 188 is
closed, the voltage across nodes 201, 203 applied to line 220 is
outputted directly across nodes 229 and 231. These nodes are
mechanically established by docking socket 54 discussed previously.
Voltage applied to the docking mechanism 50 can thus be distributed
"directly" to peripherals, after regulation within the docking
mechanism as described hereinafter (i.e., FIG. 10). Bypass switch
188 comprises a two position slide switch mounted on top of module
22 (FIG. 3E) that can be switched between "off" and the bypass
position illustrated by the marking "B."
FIG. 7 shows the preferred computerized audio playback and record
subcircuit 250. It will be understood that the features are
essentially established by well known programming techniques, and
that the subcircuit may take on different configurations.
Subcircuit 250 is energized by the power supply 200 previously
discussed. FIG. 7 shows switch 119A disposed in the record function
position. At this time, line 252 is energized by switch 119A.
V.sub.cc is applied to the subcircuit via line 254. The push
buttons 113, 115 shown in FIG. 3 are drawn schematically as buttons
113A and 115A respectively. By pressing button 115A/115 the play
function is enabled, and sounds are reproduced by transducer 256.
Button switch 113/113A controls the record function.
When "record" is selected, the record IC 270 will digitize audio
information incoming from miniature microphone 257. Bus lines 267
deliver digital information from the digital-to-analog converter
within IC 270 to the memory chip 264 for storage. The process is
reversed in the playback mode--stored digital data in memory 264 is
transformed through an analog-to-digital converter within IC and
amplified prior to delivery to speaker 256 (FIG. 7). The microphone
is physically located within module 22 adjacent an audio port 257A
(FIG. 3) defined in grill 110. The red indicator LED 129 (FIGS. 3C,
7) lights tip whenever the record/playback option is selected by
switch 119A.
In FIG. 8 subcircuit 290 establishes the programmable car battery
monitor function. Subcircuit 290 includes an auto battery warning
circuit 292 which is powered by circuit 200 previously discussed.
Previously discussed devices are powered through the shunt
regulator circuit 221 (FIG. 6) as mentioned. In this embodiment the
incoming voltage node is designated 201A. Subcircuit 292 is powered
by voltage on line 297. Depending upon the voltage level, either
LED 302 or 303 will provide a warning.
Zener diode 299 (FIG. 7) senses the incoming voltage at node 201A.
The voltage level may or may not fire transistors 300, 306. If the
voltage on line 297 is high enough, transistor 300 is turned on by
diode 299 via line 301, activating LED 302, which indicates that
proper voltage has been sensed. However, when voltage on line 297
is too "low," the low voltage indicator LED 303 will be "on." When
voltage is appropriate, Zener diode 299 will also turn on
transistor 306 via line 307. When transistor 306 conducts, the low
voltage indicator LED 303 is "shorted" and thus remains "off."
Turning now to FIG. 9, a transformable sound system subcircuit has
been generally designated by the reference numeral 320. Power
supply 200, discussed previously, is employed, but in this
embodiment the incoming voltage node is designated 201B. With line
322 energized, the sound production IC 324 fires transistor 326
through resistor 328. The value (i.e., in ohms) of feedback
resistor 325 may be varied to switch the sound output frequency. A
piezoelectric circuit 328 driven by transistor 326 produces
amplified sound. Line 322 leads to the center tap of a resonator
coil 331. Sound is produced by the parallel-connected,
piezoelectric transducer 335. For the personal alarm feature (FIG.
5) the value of resistor 325 (FIG. 9) is approximately 180K ohms.
To switch the latter subcircuit to the dog repeller feature (FIG.
5) the resistor value is approximately 51K ohms. To switch to a
mosquito repeller function (FIG. 5) the value of resistor 325 is
5.6 megohms.
Turning now to FIG. 10, the voltage variable output circuit of the
docking mechanism 50 has been generally designated by the circuit
reference numeral 50A. When connected to proper voltage as
previously discussed (i.e., on node 229 with bypass switch 188
closed), the docking mechanism 50 provides a warning light with LED
143 (FIGS. 4A, 10). Voltage is also applied across lines 350-354
through resistors 356-360. Voltage outputted from docking mechanism
is transmitted on wire 58 (FIG. 4A) to the multiple jack 61-63
discussed previously. Each of these jacks designated mechanically
in FIGS. 1 and 2 establishes the electrical connection available
across nodes 364, 365. Current is limited by a fuse 366 and voltage
isolation is provided by diode 368. Voltage selection is determined
by the position of the two pole, six position rotary switch
generally designated by the reference numeral 370. In operation
switch 370 selects one of a plurality of Zener diodes on nodes 367
for shunt-regulation, and it selects one of the resistors 356-360
to series connect to diode 368.
In the illustrated position current inputted to the docking unit
when it is connected to the recharge module 22 is directly
connected to output 364 through diode 368 and fuse 366. Voltage is
developed across ground, so that the "bottom half" of switch 370 is
in a neutral position. When other switch positions are selected the
voltage is dropped down and regulated. For example, in the next
rotary position voltage is dropped by resistor 356 and applied to
diode 368 via line 381; concurrently shunt regulator Zener diode
383 is grounded by the bottom contact of switch 370 (i.e., node 387
is grounded) to provide parallel regulation. Similarly, each of the
other diode and resistor pairs can be switched into the circuit to
provide different output levels. In the preferred embodiment,
available D.C. output voltages (i.e., appearing between nodes 364
and 365) are 13.8 (i.e., unregulated by the docking mechanism), 12,
9, 6, and 3.
From the foregoing, it will be seen that this invention is one well
adapted to obtain all the ends and objects herein set forth,
together with other advantages which are inherent to the
structure.
It will be understood that certain features and subcombinations are
of utility and may be employed without reference to other features
and subcombinations. This is contemplated by and is within the
scope of the claims.
As many possible embodiments may be made of the invention without
departing from the scope thereof, it is to be understood that all
matter herein set forth or shown in the accompanying drawings is to
be interpreted as illustrative and not in a limiting sense.
* * * * *